Cushioning device.



a srmmam.. CUSHIGNING DEVICE.

APPLICATON YILED HB. 20,1918.

Pante Sept. l0, H918..

itioiingnn siinineisonit' or l cLEvELnNi), oHIo.

ousiironire DEVICE;

retenes.

s Application-med February 20, .1"9118.A

lTo all 'autom' lit may concern."

IBe. it known' that I, Rioriann SPRINGBORN,

'citizen of thejllnited States, residing at Cleveland, in the county 'of Cuyahoga. and

"State 'of Chio.,A have invented-certainnew and vuseitul`- Improvements in Qushioning'- "Devices, of which the vfollowing is a specip This invention relates to cushioning de- 'vices,'or in other Words, to devices for cushioning or o'ering yielding resistance tothe movement of parts. .The object' of the in- 1 [vention is to` provide an improved -device, of

l'iis .this lrindivhichjis of simple `form andl can 'therefore-be' made cheaply;l whose active part mayfbeo'fcast metal, thereby avoiding 'the 'I'iece'ssityl ot- ,temp'ering operations;

Whose amount o'f-y'iield may -be definitely linited bythe construction-of the device itself; and i'vhi'ch'device is also capable 'of use ina wide variety` of 'Ways and is therefore "adaptable forV utilization 'in many diiiiei'ent formsofdevice. .Further objects oftheinveiition are in part obvious and in part Will vappear more in detail hereinafter.

1 Figure l illustrates-'a sectional elevation 'through `one-form of device embodying the invention; 2 is La plan v-ievv thereof, 'with 'the upper member omitted; Fig. 3 is asectiona'l view, corresponding to Fig. vl,

and illustrating ainodilication; and F ig. 4 is'ja longitudinal sectional view showing one form of fittingy embodying vthe invention.

' .Mv-improved cushioning device comprises 'essentially' three members, to Wit, a com-- pressibleaing or annulus' and two coperatf ingseat members therefor.l i The ringer anniilus,l may takeseveralforms, for example, in Fig'. l 'the ring 1 illustrated 'is o substaii' tially"trangular cross section, its inner portionhaving .the Wide surfaceQ and its outer portion havingythe narrower vsurface 3 at the angle fof the triangle. 'It is therefore 'provided Withnpper and lower inclined or vconical faces 4' and Said ring lcooperates With two seat lmembers 6 and 7, which are also circular in; form andorre or' both of which are provided with inclined substantially conical seats or seat'faces i2 to ooperate Vwith the seat faces 4 and- 5 of the ring..

Members C- and 'r' may be suitably connected or arranged so that their movement relative to each other is confined to movement along their common aXis-lateral movement relative'theret-o being prevented. This result may besecured by severaln'ziys',v 'for eit- Speccation of Letters'Patent'.

las shown in Fig. .3, bv confining both inem- .shoivit multiple form.

y Patented sept'. io, reis. seriaiivo. 218,354: A

slot enables the ring to be collapsed or'comat-tlie sides of the slot abut.

Consequently thetivo members 6 and 7 may be moved tolWard 'each other in the diiectionfof their. .axis with a consequent yield by collapsing movenientof the ring 2*. Even though said ring is made of cast metal, suoli as cast iron or steel, it can be ycollapsed a small amount inthe manner described and has sufficient resiliency yto exert cushioning reactive effect. `Wlieii the tivo members are released the -ally to .produce the narrow slot 1l. This Y' pressed untill the neighboring end surfaces ring ,expands to its original forni andi pushes the seatineinbers' apart.

VA lne cross sectional forni of the ring may vary, so long as it is constructed in a manner to be affected by the coperating seat members. For example the ring' 2 in Fig. Slis of circular cross 'section and with a slight gap at the meeting ends. The seat face l2 may also be transverse to the -axis While all. vthe inclination is on face 12b as The cushioning device described is capable of use in a Widevariety of structures,

particularly Where only slight yielding movement of a part or. partsis required.

'It serves 'admirably for example for use inl automobile bearings, for bonnets of valves,

for swivel pipe joints and the like. F ig'. ft illustrates the invention applied to a fitting, such as a swivel pipe joint suitable for use in a conduit for steam, Water or the like This fitting also embodies the invention in trates one I :iossibilityv ofincluding a' seriesof compressibleV rings yin a single joint,' thereby increasing the amount of possible..

relative axial movementI between the end members. The fitting described comprises tivo members 2O4 and 21 connected together, so as to be capable of relative rotation around their common axis.v As illustrated niein'berQi is provided with. an annular transverse face 22 forming a shoulderto re- Y ceivethe union nut 23 having threaded con nectioii at 2.4L to'member Q0. One of the In other Words, it illusiio members 21 and 23, say member 23. carries 'a layer 25 @f @naaien-0s man 'eine joint..- .The fitting is also provided with thecusl-i ioning meansnow to be ldescribed 'foi-:heid:

ing the parts tightly `together 'at'this joint. vTo exert the proper cushioning efect `in the joint member 21 is provided with an aninular portion 26 carrying the tapered orconi-4 calseat 27, While `an extension yof-men'aber 21'carries a ring 28 having a cooperating tapered-or conical seat 29'. yThese seats 27 1 and 29 may Vcoperate with a. single i"ing,

'located an vidle ring `31.

of triangular cross section shown orot round cross section as shownin F 1g. 3 and such as the-ring 2 of Fig. 1, butas shown each of said surfaces cooperates' with a sepa-v rate ring 30, and between the tvvo rings 30is' Rings 3.0111213 be are of coursefsplit at one point of theircircumference' as at 117 Fig. 2. IRing 31,-howover7 is a completeunbroken .annulu's To prevent relative rotation of the yielding cushioning parts, such as might produce Wear, any7 suitable means may be provided for preventing rotation between the mem bers 21 and 22 such as the' pin or projection 182 on member 2S Working in a slot or recess 1n member 21.

l/Viththe arrangement described bers -21 and 20 may be Irelatively moved longitudinally of their axis by turning, up vthe .threaded connection 24, which compresses face 22 tight. lRelative rotation of the parts pressible-- splitfan'nulus 'formedof cast-metal.'

the mem-y aeree@ 'capable of'l adaptation'for'. manyfdevices and can -bematerially. 'I'imdfiedv` without depart vpressible split annu'lus formedj'of .east inetalg 'and a coperating seat'ni'ember"thereton.

i2. A 'cushioningdevice, corn'pri'singa'- oman',l abutmenton one "side of saidanfulnsrand 'I 1a `co'perating seat.-. memberA having "an annu- 4'lar inclined' surface to rece1ve',..sa1d annulus. and vlocated on the 'other side thereof; Whereby g said annulus' jofers yielding 'resistance toward relative movement towardeachother o fsaid seat member and abutment...

A cushioning device,. comprising a conil pressible split annulus formed of cast-metal,

and two' cooperating seat members provided with annular inclined aces'toreceive-'said annulus therebetvveen,whereby' said annul'us offers yielding' resistance 1 toward relative movement toward each' otherof saidseat. member and abutmentp.'l

4. A cushioning device,' 4comprising 'two coperating members having annulanseats, and an amiular compressible member formed of cast metallying between said seats.;

5. A cushioning device,- comprisingjtwo coperating seat meinbers,janda y plurality of eompressible split annular-cast metal members therebetween.

6. A cushioning.- device,l "comprising ltv'vo coperating seat members, and a plurality of compressible split annular cast metalfnlunibers therebetween, `each two adjacent. annuf- 'lar members being separated by complete' solid ring.' v

' Intestimony' whereof I aiix'mysignature.

' RICHARD SPRINGBGRN. 

